What is a three-line six-axle semi-trailer?

In the transportation industry, there is a special semitrailer, their length, width and so on are different from the ordinary semitrailer, the tires are smaller than the ordinary semitrailer, the number is more, and even get the common name "crawling on the ground", for example, the owners often say that the three-line six-axis semitrailer.

So, what is "three lines" and "six axes"? What does a three-line six-axle semi-trailer look like?

Three-line six-axis semi-trailer, generally speaking, is the semi-trailer behind the tractor, designed three rows of wheels, this is the "three-line"; A row of wheels parallel two axles, add up to a total of six axles, this is the "six axles"; Two tires are installed at each end of an axle, that is, four tires are installed on one axle, and twenty-four tires are installed on six axles in total. The reason why so many tires are designed is that this semi-trailer is used to transport large goods, which is often said to be large transport vehicles.

In fact, in addition to the three-line six-axis car, there are four lines of eight axes, five lines of ten axes and uncommon six lines of twelve axes, seven lines of fourteen axes and other models, all belong to large transport vehicles, specially used to transport large non-removable goods. Bulky transport vehicles usually belong to transport companies with large transport qualifications, and their operation qualifications can be divided into four categories according to equipment and personnel:

Class I refers to the ability to transport Class I large objects, up to 100 tons; Class II refers to the capacity to transport Class II large goods on the basis of Class I goods, with a maximum limit of 200 tons; Similarly, the higher the category, the higher the level of goods that can be transported, up to 300 tons or more. Three lines six axes can generally allow the transport of 80 tons of large goods, four lines eight axes can allow the transport of 100 tons of large goods, five lines ten axes can allow the transport of 120 tons of large goods, and so on.

Except for three-line six-axle semi-trailer that can be registered on the household, other models need to apply for temporary license, which is generally valid for only one month. If it exceeds the validity period, it needs to be reissued in advance. In addition, the transportation route or transportation time should also be in accordance with the regulations.

Compared with the ordinary semi-trailer, the advantages of three-line six-axle trailer axle are large load, wheel axle load is more uniform, small turning radius, and longitudinal pull rod adopts the form of double row, which can reduce the left and right swing in the process of vehicle driving; Of course, there are also some disadvantages, such as open-tire loading, goods are not easy to discharge or fix.

In addition, due to the special cargo transport of three-line six-axis semi-trailer, the performance of the vehicle is more demanding than that of ordinary semi-trailer, especially the chassis axle of the vehicle, which is directly related to the bearing capacity of the vehicle, it is necessary to choose high-quality products with reliable quality, stiffness and strength standards.

DARO Group is an enterprise specializing in the development and production of commercial axles in Liangshan, Shandong Province. It has been deeply engaged in the axles industry for 20 years and is known for its high cost performance. The trailer axles produced by DARO all go through 15 high precision processes, and the comprehensive mechanical properties of the products are excellent, such as strength, toughness and ductility. DARO trailer axles all adopt the one-piece axles building technology, change the traditional three-joint welded axles, so that the load capacity of the axles is greatly improved, but also according to the actual needs of customers customized special axles, to meet the diversified needs of owners.